Operational Test of the Probe Ice Protection A320
CAUTION: IF THERE WAS AN AIRSPEED OR ALTITUDE DISCREPANCY REPORT ON THE PREVIOUS FLIGHT, DO A RESET OF THE TWO ELAC’S (OFF-ON OF THE ELAC 1 AND 2 PUSHBUTTON SWITCHES ON THE OVERHEAD PANEL) WITH THE THREE HYDRAULIC SYSTEMS DEPRESSURIZED.
1.Reason for the Job
Self explanatory
2. Job Set-up Information
A. Referenced Information
| REFERENCE | DESIGNATION |
| Ref. 24-41-00-861-002-A | Energize the Aircraft Electrical Circuits from the External Power |
| Ref. 24-41-00-861-002-A01 | Energize the Aircraft Electrical Circuits from the APU |
| Ref. 24-41-00-861-002-A02 | Energize the Aircraft Electrical Circuits from Engine 1(2) |
| Ref. 24-41-00-862-002-A | De-energize the Aircraft Electrical Circuits Supplied from the External Power |
| Ref. 24-41-00-862-002-A01 | De-energize the Aircraft Electrical Circuits Supplied from the APU |
| Ref. 24-41-00-862-002-A02 | De-energize the Aircraft Electrical Circuits Supplied from the Engine 1(2) |
| Ref. 31-32-00-860-007-A | Procedure to Get Access to the SYSTEM REPORT/TEST/ICE & RAIN Page |
| Ref. 34-10-00-860-002-A | ADIRS Start Procedure |
| Ref. 34-10-00-860-005-A | ADIRS Stop Procedure |
3. Job Set-up
SUBTASK 30-31-00-861-052-A
A. Energize the aircraft electrical circuits Ref. AMM TASK 24-41-00-861-002.
SUBTASK 30-31-00-941-050-A
B. Aircraft Maintenance Configuration
(1) On the panel 25VU:
— make sure that the PROBE/WINDOW HEAT pushbutton switch is released (the ON legend is off).
(2) Do the ADIRS start procedure Ref. AMM TASK 34-10-00-860-002.
(3) On the left or right MCDU, get SYSTEM REPORT/TEST ICE & RAIN page Ref. AMM TASK 31-32-00-860-007
SUBTASK 30-31-00-865-054-A
C. Make sure that this(these) circuit breaker(s) is(are) closed:
| PANEL | DESIGNATION | FIN | LOCATION |
| 49VU | ANTI ICE/PROBES/AOA/1 | 4DA1 | D04 |
| 49VU | ANTI ICE/PROBES/PHC/1 | 2DA1 | D03 |
| 49VU | ANTI ICE/PROBES/PITOT/1 | 3DA1 | D02 |
| 122VU | ANTI ICE/PROBES/PHC/3 | 2DA3 | Y16 |
| 122VU | ANTI ICE/PROBES/2/TAT | 1DA2 | Y15 |
| 122VU | ANTI ICE/PROBES/2/PITOT | 3DA2 | Y14 |
| 122VU | ANTI ICE/PROBES/2/AOA | 4DA2 | Y13 |
| 122VU | ANTI ICE/PROBES/PHC/2 | 2DA2 | Y12 |
| 122VU | ANTI ICE/PROBES/2/STATIC | 5DA2 | Y11 |
| 122VU | ANTI ICE/PROBES/3/PITOT | 3DA3 | Z16 |
| 122VU | ANTI ICE/PROBES/3/AOA | 4DA3 | Z15 |
| 122VU | ANTI ICE/PROBES/3/STATIC | 5DA3 | Z14 |
| 122VU | ANTI ICE/PROBES/1/STATIC | 5DA1 | Z13 |
| 122VU | ANTI ICE/PROBES/1/TAT | 1DA1 | Z12 |
4. Procedure
SUBTASK 30-31-00-710-050-A
A. Operational Test of the Probe Ice Protection System
| ACTION | RESULT |
| On the MCDU:-push the line key adjacent to the PHC 1(2)(3) indication. | -the PHC 1(2)(3) page comes into view |
| -push the line key adjacent to the TEST indication. | -the TEST WAIT indication comes into view then, after some seconds, the TEST OK indication comes into view. |
SUBTASK 30-31-00-862-052-A
B. De-energize the aircraft electrical circuits Ref. AMM TASK 24-41-00-862-002.
